Authors: Abbing, C. P. --- Abrahamsen, M. A. --- Agren, N. --- Appleby, J. --- Barou, N --- et al. Basevi, A. --- Cheesman, W. J. W. --- Digby, M. --- Feldmann, C. --- Gils, A. --- Goddard, W. J. --- Gomez, J. A. --- Jenkins, David --- Johnston, J. --- Linna, E. --- Meehan, P. --- Miller, Christopher John --- Lu, N. P. --- O'Meara, J. E. --- Romieu, J. --- Scroggs, C. L. --- Selaries, G. --- Youngjohns, B. J. --- Plunkett foundation for co-operative studies
Year: 1954 Publisher: Oxford : Basil Blackwell,

Authors: Infield, H. F. --- Parry, H. B. --- Trowell, H. C. --- Berry, W. T. S. --- Jennings, L. --- et al. Norman, H. F. --- Knapp, J. G. --- Hull, J. T. --- Ryan, J. C. --- Horrocks, M. J. --- Cheesman, W. J. W. --- Boyd, R. --- Brown, J. W. --- Henry, R. --- Barfield, A. R. --- Hemmer, C. --- Brugger, H. --- Stensgard, H. H. --- Bjanes, T. --- Evelpidis, Chrysos --- Amer, A. L. --- Touny, A. D. --- Plunkett foundation for co-operative studies
Year: 1948 Publisher: Cambridge : W. Heffer & Sons,